NFIP paging fix + dataframe_query truncation disclosure
Large NFIP canvas queries now page 5x faster; capped SQL results disclose truncation with continuation guidance.
Fixed:
fema_search_nfip: canvasPAGE_SIZEraised 1,000 → 5,000 — a ~49,785-row query now completes in ~10 fetches instead of ~50, well inside typical transport timeouts (#16)fema_dataframe_query: capped results now disclosetruncated/shown/capin structuredContent and a LIMIT/OFFSET continuation notice in content[];rows/querydescriptions corrected (#19)
81 tests pass; bun run devcheck clean.